Refrigerator



FIG. 1 is a front perspective view of the refrigerator showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left-side view thereof;

FIG. 5 is a right-side view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines in the drawing show unclaimed environment only and form no part of the claimed design. 

CLAIM We claim the ornamental design for the refrigerator, as shown and described. 